using System;
using DG.Tweening;
using TMPro;
using UnityEngine;

public sealed class MachineCountersPanel : MonoBehaviour, IControlable
{
    public event Action OnClosed;

    [SerializeField] private CanvasGroup _canvasGroup;
    [SerializeField] private TextMeshProUGUI[] _resettableValues;
    [SerializeField] private TextMeshProUGUI[] _lifetimeValues;
    [SerializeField] private TextMeshProUGUI _resetButton;
    [SerializeField] private TextMeshProUGUI _backButton;
    [SerializeField] private TextMeshProUGUI _status;
    [SerializeField] private RectTransform _holdProgressFill;
    [SerializeField] private float _resetHoldDuration = 1f;
    [SerializeField] private float _serviceHoldDuration = 1f;
    [SerializeField] private float _fadeDuration = 0.25f;
    [SerializeField] private Color _normalButtonColor = Color.white;
    [SerializeField] private Color _selectedButtonColor = new Color(1f, 0.85f, 0.1f, 1f);

    private const int ResetButtonIndex = 0;
    private const int BackButtonIndex = 1;
    private const int ValuesCount = 11;

    private Tween _fadeTween;
    private int _selectedButtonIndex;
    private float _resetHoldTime;
    private float _serviceHoldTime;
    private float _statusHideTime;
    private bool _actionReleased;
    private bool _serviceReleased;
    private bool _isClosing;

    public bool ControlsEnabled { get; set; }

    private void OnDisable()
    {
        _fadeTween?.Kill();
        _fadeTween = null;
        ControlsEnabled = false;
    }

    public void Open()
    {
        _fadeTween?.Kill();
        transform.SetAsLastSibling();
        _canvasGroup.alpha = 0f;
        _canvasGroup.blocksRaycasts = true;
        _selectedButtonIndex = BackButtonIndex;
        _resetHoldTime = 0f;
        _serviceHoldTime = 0f;
        _statusHideTime = 0f;
        _actionReleased = false;
        _serviceReleased = false;
        _isClosing = false;
        _status.text = string.Empty;
        ControlsEnabled = true;
        RefreshValues();
        UpdateButtonSelection();
        SetHoldProgress(0f);

        _fadeTween = _canvasGroup.DOFade(1f, _fadeDuration).SetEase(Ease.OutCubic).SetUpdate(true);
        _fadeTween.PlayForward();
    }

    public void UpdateControls()
    {
        UpdateStatus();
        UpdateServiceExit();

        if (_isClosing)
            return;

        int horizontal = In.GetAxis(JoystickSide.Both, InteractMode.Discrete).x;

        if (horizontal != 0)
        {
            _selectedButtonIndex = _selectedButtonIndex == ResetButtonIndex ? BackButtonIndex : ResetButtonIndex;
            _resetHoldTime = 0f;
            SetHoldProgress(0f);
            UpdateButtonSelection();
        }

        bool actionHeld = In.GetAction(JoystickSide.Both, InteractMode.Continious);

        if (actionHeld == false)
            _actionReleased = true;

        if (_selectedButtonIndex == BackButtonIndex)
        {
            _resetHoldTime = 0f;
            SetHoldProgress(0f);

            if (_actionReleased && In.GetAction(JoystickSide.Both, InteractMode.Discrete))
                Close();

            return;
        }

        _resetHoldTime = _actionReleased && actionHeld
            ? Mathf.Min(_resetHoldTime + Time.unscaledDeltaTime, _resetHoldDuration)
            : 0f;
        SetHoldProgress(_resetHoldTime / _resetHoldDuration);

        if (_resetHoldTime < _resetHoldDuration)
            return;

        MachineCountersService.ResetResettableCounters();
        _resetHoldTime = 0f;
        _actionReleased = false;
        SetHoldProgress(0f);
        RefreshValues();
        ShowStatus("ОБНУЛЯЕМЫЕ СЧЁТЧИКИ СБРОШЕНЫ", 2f);
    }

    private void RefreshValues()
    {
        if (_resettableValues.Length < ValuesCount || _lifetimeValues.Length < ValuesCount)
            return;

        MachineCounterSet resettable = MachineCountersService.GetResettableCounters();
        MachineCounterSet lifetime = MachineCountersService.GetLifetimeCounters();

        SetValues(_resettableValues, resettable);
        SetValues(_lifetimeValues, lifetime);
    }

    private void SetValues(TextMeshProUGUI[] labels, MachineCounterSet counters)
    {
        labels[0].text = FormatRevenue(counters.revenue);
        labels[1].text = counters.prizesIssued.ToString();
        labels[2].text = counters.gamesStarted.ToString();
        labels[3].text = counters.pveGamesStarted.ToString();
        labels[4].text = counters.pvpGamesStarted.ToString();
        labels[5].text = FormatDuration(counters.AverageSessionDurationSeconds);
        for (int botIndex = 0; botIndex < MachineCounterSet.BotCount; botIndex++)
            labels[6 + botIndex].text = FormatBotResults(counters, botIndex);
    }

    private void UpdateButtonSelection()
    {
        SetButtonSelected(_resetButton, _selectedButtonIndex == ResetButtonIndex);
        SetButtonSelected(_backButton, _selectedButtonIndex == BackButtonIndex);
    }

    private void UpdateServiceExit()
    {
        bool serviceHeld = In.GetService();

        if (serviceHeld == false)
            _serviceReleased = true;

        _serviceHoldTime = _serviceReleased && serviceHeld
            ? Mathf.Min(_serviceHoldTime + Time.unscaledDeltaTime, _serviceHoldDuration)
            : 0f;

        if (_serviceHoldTime >= _serviceHoldDuration)
            Close();
    }

    private void ShowStatus(string message, float duration)
    {
        _status.text = message;
        _statusHideTime = Time.unscaledTime + duration;
    }

    private void UpdateStatus()
    {
        if (_statusHideTime <= 0f || Time.unscaledTime < _statusHideTime)
            return;

        _status.text = string.Empty;
        _statusHideTime = 0f;
    }

    private void SetHoldProgress(float progress)
    {
        Vector2 anchorMax = _holdProgressFill.anchorMax;
        anchorMax.x = Mathf.Clamp01(progress);
        _holdProgressFill.anchorMax = anchorMax;
    }

    private void SetButtonSelected(TextMeshProUGUI button, bool selected)
    {
        button.color = selected ? _selectedButtonColor : _normalButtonColor;
        button.rectTransform.localScale = selected ? Vector3.one * 1.08f : Vector3.one;
    }

    private void Close()
    {
        if (_isClosing)
            return;

        _isClosing = true;
        ControlsEnabled = false;
        _fadeTween?.Kill();
        _fadeTween = _canvasGroup.DOFade(0f, _fadeDuration).SetEase(Ease.InCubic).SetUpdate(true);
        _fadeTween.OnComplete(() =>
        {
            _canvasGroup.blocksRaycasts = false;
            OnClosed?.Invoke();
        });
        _fadeTween.PlayForward();
    }

    private static string FormatRevenue(long revenue)
    {
        string currency = PluralizeUtil.GetValutaPluralized(
            PaymentSystem.ValutaName,
            (int)(revenue % 100));

        if (currency == "Valuta_Error")
            currency = PaymentSystem.ValutaName;

        return $"{revenue:N0} {currency}";
    }

    private static string FormatDuration(double seconds)
    {
        TimeSpan duration = TimeSpan.FromSeconds(Math.Max(0d, seconds));
        return duration.TotalHours >= 1d
            ? $"{(int)duration.TotalHours:00}:{duration.Minutes:00}:{duration.Seconds:00}"
            : $"{duration.Minutes:00}:{duration.Seconds:00}";
    }

    private static string FormatBotResults(MachineCounterSet counters, int botIndex)
    {
        return $"Л {counters.easyBotWins[botIndex]}/{counters.easyBotLosses[botIndex]}  "
            + $"С {counters.mediumBotWins[botIndex]}/{counters.mediumBotLosses[botIndex]}  "
            + $"Т {counters.hardBotWins[botIndex]}/{counters.hardBotLosses[botIndex]}";
    }
}